From: David Miller <davem@davemloft.net>
To: sunil.kovvuri@gmail.com
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, sgoutham@cavium.com
Subject: Re: [PATCH] net: thunderx: Fix BGX transmit stall due to underflow
Date: Sat, 29 Jul 2017 14:18:13 -0700 (PDT) [thread overview]
Message-ID: <20170729.141813.2129692875257358096.davem@davemloft.net> (raw)
In-Reply-To: <1501140184-25625-1-git-send-email-sunil.kovvuri@gmail.com>
From: sunil.kovvuri@gmail.com
Date: Thu, 27 Jul 2017 12:53:04 +0530
> From: Sunil Goutham <sgoutham@cavium.com>
>
> For SGMII/RGMII/QSGMII interfaces when physical link goes down
> while traffic is high is resulting in underflow condition being set
> on that specific BGX's LMAC. Which assets a backpresure and VNIC stops
> transmitting packets.
>
> This is due to BGX being disabled in link status change callback while
> packet is in transit. This patch fixes this issue by not disabling BGX
> but instead just disables packet Rx and Tx.
>
> Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Applied.
prev parent reply other threads:[~2017-07-29 21:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-27 7:23 [PATCH] net: thunderx: Fix BGX transmit stall due to underflow sunil.kovvuri
2017-07-29 21:18 ` David Miller [this message]
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